Iowa State University Library Instruction Services. (2021). Library 160: Introduction to College-Level Research. Iowa State University.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रIowa State University Library Instruction Services. Library 160: Introduction to College-Level Research. [Place of publication not identified]: Iowa State University, 2021.
एमएलए (9वां संस्करण) प्रशस्ति पत्रIowa State University Library Instruction Services. Library 160: Introduction to College-Level Research. Iowa State University, 2021.
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